Hi Mark, I would call this progress 
As others have noted, my image in itself is not overly sharp. It was shot with a diminuitive GM5 and all details shown here are magnified a lot.
The halos are (for me at least) only a side aspect - albeit a significant one. But observe the colour change in the spectacle frame: the oversharpening (middle version) darkens the whole frame. The right hand version pleases me. At normal size it would certainly be sharp enough.
So, now the 100000$-question is, how to get this kind of result out of DxO PureRaw2 (on my setup).
I fear, that my current test version will run out first before there is a fix. But I’ll be happy to test again.
Andreas